Documents / Official release
This is a Secret History Staff monograph by Gregory W. Pedlow and Donald E. Welzenbach of the Central Intelligence Agency, published in 1992. It gives a history of the CIA's manned overhead reconnaissance program from 1954 to 1974, covering the development and operation of the U-2 and the A-12 OXCART aircraft. It covers overflights of the Soviet Union, the 1960 downing of Francis Gary Powers, and later operations. One section is titled "U-2s, UFOs, and Operation BLUE BOOK."
From the source:Release of 2026-06-12 This CIA History Staff document chronicles the complete history of the U-2 and OXCART (A-12) high-altitude reconnaissance aircraft programs from 1954 to 1974, detailing their development, operations over the Soviet Union and other targets worldwide, the famous downing of Francis Gary Powers in 1960, organizational reforms following that incident, and the eventual transfer of operations from CIA to Air Force control. A more redacted version of this document has been available on CIA's public website.
“Headquarters”22 pages
360 Sec, et NOFORN Index Carey, Howard 80, 140 Carter, John H. (Jack) 9-10 Carter, Marshall S. 186, 201, 205, 208-209, 299, 327 Caspian Sea 126 catheterized 64 cathode-ray tube 267 Caucasus Mountains 179 celestial "fixes" 76 Central Asia 135 Central Asian republics 176 Central Intelligence Agency (CIA) 29, 32, 59 Air Force competition 308 air operations 157, 191 General Counsel 44 Inspector General 190 proprietary 260, 129 proprietary firm 110, 129, 222, 260 U-2 program 257, 181 centrifugal force 177 CHALICE 155, 170, 182 Chamoun. Camille 152 Chance Vought Corporation 8 Ch'ang-sha, China 228 Chapman, Robert 238 Charbatia. India 232-233, 237, 239 Charyk, Joseph V. 260, 327-328 Chekiang Province 235 Chelyabinsk, Soviet Union 176 Cherbonneaux, James 127, 138, 214 Chiang Ching-kuo 224 Chiang Kai-shek 224 Chiang-yu. China 228 Chicago Daily Tribune 132 Chief of Station for Germany IOI Chief of Station in Taipei 224 Chief of the German General Staff I "chimney" 71 China 5, 85, 135, 148, 157, 174, 190, 201, 211, 215-217, 219. 221-222. 224-226. 228-233. 235-237, 239-240, 242-243, 245, 247, 253. 282. 301. 305, 307, 319. 336. 339-341. 343. See also Nationalist China and People's Republic of China (PRC) China Lake, California 340 chine 277 Chinese Communist nuclear tests 240 Chinese mainland 319. 215,222.226 Chinese nuclear reactors 238 Chinese nuclear test 237 Christ, David L. 339 Christian Science Monitor 18 Civil Air Transport 214, 222 civilian supersonic transport (SST) 293 Secact
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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 406 pages are in the text index: search them above, or from the library's search.